Gerard Madden is an Irish historian who specializes in the Catholic Church’s efforts to stamp out socialism and communism in Ireland during the 20th century.

Daniel Faas is an associate professor of sociology at Trinity College Dublin. He studies social change and identity formation, with an emphasis on migration, religion and education.

Rachel Monaghan is a senior lecturer in criminology at Ulster University in Ireland. She studies political violence with a particular interest in paramilitary conflict in Northern Ireland.

Catholic leaders will gather in Rome later this month to discuss the clergy sex abuse crisis. Experts doubt they’ll approve any major policy changes.

Marie Collins is a survivor of clergy sexual abuse who now advocates for meaningful change in Catholic Church policy. She was appointed to the Pontifical Commission for the Protection of Minors in 2014, but she resigned in frustration in 2017 because of a lack of action from Vatican officials.

Sean O’Callaghan is an associate professor of religion at Salve Regina University in Newport, Rhode Island. He studies New Religious Movements, religiously motivated violence and transhumanism.

President Donald Trump has undone or renegotiated many of his predecessor’s environmentally friendly policies, removing climate change research from government websites and pulling out of the Paris climate agreement. Religiously inspired environmental activists have emerged as some of his loudest critics.

Jane Mellett is a parish pastoral worker in the Archdiocese of Dublin. In 2018, she tweeted every line of Laudato Si’ to President Donald Trump to protest his environmental policies.

John Littleton is a Catholic priest and director of the Priory Institute in Dublin. He is co-editor of Contemporary Catholicism in Ireland: A Critical Appraisal and Irish and Catholic?: Towards an Understanding of Identity and a frequent commenter on Irish-Catholic life and issues.